2006 Water Comprehensive Plan - City of Bellevue

CopyCenterFrom:Scott Thomasson [STHOMASSON@redmond.gov]Sent:Wednesday, January 31, 2007 10:54 AMTo: Thompson, Randall L.Subject:RE: Bellevue's Draft Water Comprehensive PlanThe only concern I have with the water system plan is the storage analysis. The report refers to Technical Appendix Athat was not included in the plan so I could not evaluate the analysis so I may not fully understand your methodology.Redmond has chosen to use 400 gallons per residential equivalent for standby storage compared to Bellevue's choosingto use 200 gallons per residential equivalent. We do not consider the Seattle system to be as robust as you and we aremuch farther from the Cedar system. This would normally not be an issue however we do share supply meters and sharestorage ownership in a reservoir. The concern is that after Bellevue's customers use their 200 gallons they will start usingthe remaining portion of Redmond's 400 gallons. Also you will start using the regional storage in the Eastside reservoirsooner if a major water supply crisis starts to occur. The other factor is that when we start to wean ourselves from theSeattle supply and are on the end of a less than redundant supply system we will likely no longer be able to claim to havea two source supply. This is a conversation we should start having with Cascade and DOH so that we can startconsidering the likelihood of needing additional storage. We could find ourselves needing three to four times the storagewe currently have. Storage sites are very hard to come by as there is little vacant land and many people do not want onenext door to them. It takes many years to plan, design and build a water storage tank as Redmond and Bellevue did inthe late 1980's. It may be appropriate to start developing the additional storage that will be needed over the next severaldecades.Redmond's criteria show that we have a storage deficiency in the Overlake and View Point neighborhood's . Our watersystem plan shows how we can move water from our well service are to our Rosehill area and then to the View Point areain order to address this issue. We may have an opportunity with the abandonment of the Group Health Hospital site toacquire a piece of property on the top of the hill to build a storage tank. Redmond would be interested in partnering in theconstruction of this tank with Bellevue. This possibility may be something to include in your plan.-----Original Message-----From: RLThompson@bellevuewa.gov [mailto:RLThompson@bellevuewa.gov]Sent: Monday, January 29, 2007 11:28 AMTo: Scott ThomassonCc: RLThompson@bellevuewa.govSubject: Bellevue's Draft Water Comprehensive PlanScott,On November 3rd, 2006 you were sent a copy of Bellevue's Oct. 2006 Draft Water Comprehensive Plan forreview. Comments on the draft plan were due December 8th, 2006. We did not receive any comments fromRedmond. If you would still like to provide us with written comments, we must receive them no later thanMonday, February 5th, in order to assure that they are considered. Thank you.- RandyRandall L. Thompson, P.E.Engineering Supervisor - Utility Systems PlanningCity of Bellevue Utilities Dept. / Engineering Div.P.O. Box 90012 ~ Bellevue, WA 98009-9012phone: 425-452-6919 fax: 425-452-5286e-mail: RLThompson@BellevueWA.gov1